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The effects of Ozone Depletion essay
The effects of Ozone Depletion essay
essay causes and effects of ozone depletion
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The premise of this paper focuses on vertical structure of Antarctic tropospheric ozone depletion. This is a slight change in the widely studied surface depletion. The reasoning to this study is that ozone depletion events occur in a 4-dimentional phenomena with structure in the horizontal, vertical time and time components. Supporting evidence shows that vertical extent of an ODE (ozone depletion event) is strongly modulated by the physical behaviour of the atmosphere. In the atmosphere, the existence of a depleted air mass causes a temperature inversion to occur. In the following summary of two separate field experiments were done to explore the implications and characteristics of low and high altitude ODE’s.
Two experiments were carried out in the spring of 2007 and 1987 in the Antarctic at the British Survey stations. The first experiment was a tethersonde experiment at the Halley V station (2007). The use of a surface ozone monitor was used, when a sharp decline in mixing ratios of ozone occurred, staff were alerted via an alarm. Staff then initiated a profiling experiment whic...
Swimming to Antarctica, by Lynne Cox, is about Lynne’s adventure to become a great long distance swimmer. Lynne started as a slow swimmer. During practice, she never rested for each instruction the coach gives. She later found out that she wanted to be a long distance swimmer. Her coach told her to join a race on a lake. She went and she loved to swim in the open waters. She then went to a different program that trained her to swim in the open waters.
15.2) The accumulation of chlorofluorocarbons is responsible for depleting the atmospheric zone. The atmospheric zone has changed in concentration due to human activity. The CFCs release chlorine atoms which react with ozone reducing it to molecular O₂. Following chemical reactions release the chlorine which reacts with other ozone molecules in a catalytic chain reaction. The ozone layer is getting thinner and thinner as stable air at places such as Antarctica allows reaction to continue. The accumulation of CFCs has led to increased UV radiation in sunlight reaching the earth thereby decreasing ozone levels. The global temperature has increased.
National Weather Service. National Oceanic and Atmospheric Association, 5 Jan. 2010. Web. 2 Feb. 2010. .
Flugel, Moritz and Ping Chang. "Does the Predictability of ENSO Depend on the Seasonal Cycle?". Journal of Atmospheric Sciences: vol. 55, No. 21, pp. 3230-3243.
In 1914, a great leader began a great expedition, unbeknownst to him that instead of being known as great explorers, they would be known as some of the greatest survivors. This man was Sir Ernest Shackelton and he was determined to be the first to cross the Antarctic. Little did he know, his biggest challenge would end up being his ability to lead his team to survival. He also had no idea that their tale of strength, determination, and courage to survive would influence people well into the 21st century, and the book detailing their stories would be used as a model of leadership. As our group read this book, it was evident that Shackleton was a truly motivated and successful leader as we have come to understand him to be.
...iod." NOAA Paleoclimatology Global Warming. National Oceanic and Atmospheric Administration, n.d. Web. 28 Nov. 2013. .
...he experiment consisted of two jars, one jar was filled with vinegar and the other jar had bicarbonate soda and vinegar in it. The bi-carb soda caused the temperature to rise. This is concerning because the sea temperatures are also rising. Healthy sea temperature is vital to reef building and controls the speed of coral reef development. Escalating sea temperature is endangering distribution and diversity of marine life.
Nodvin, Stephen C. “Antarctic Ice: An 800,000-Year Record of Climate Change.” Paragraph Title: Temperature, carbon dioxide and methane. Encyclopedia of the Earth. 2012. Web. May 10, 2015. http://www.eoearth.org/view/article/150101
* Nitrogen Oxides are presented through the atmosphere. N2O are very powerful in the chemistry of the troposphere and the stratosphere, and they are very important in ozone production and in the destruction processes. There are a number of sources (the oxidation of N2O like lightning and fossil fuel combustion) whose contribution to NOx concentrations in the upper troposphere is not well measured.
Four NOMAD buoys across the North Atlantic registered a 13-degree drop in SST. And soon a series of extreme weather happened in front of my eyes: hurricanes, snow storms, and even cyclones that rapidly pulled cool air from the upper troposphere which made people freeze instantly. Those were the scenes I saw from The Day after Tomorrow, the film that inspired my curiosity in atmospheric sciences in my seventh grade. Although shocked by the catastrophe caused by global warming in the film, I couldn't help take an eager interest in how freshwater from melted polar ice caps brought a shift in the North Atlantic Current, and how the shifted current brought a change in the earth’s climate. Later, as I gathered more information about the climate, I became fascinated by the physical and dynamical mechanisms explaining atmospheric phenomenon. And after three years of undergraduate study of atmospheric sciences, beyond the starting point of fascination, I have taken concrete steps forward with my hard work, independence, and creativity.
Data indicated that earth’s surface temperature is rising. This increase can be attributed, in part,
In this document I will explain how the ozone hole is formed and the effects that it has on the environment, what global warming is and how it is caused, and the ways, if any, in which these two phenomena are linked together. Both the ozone hole and global warming have an effect on the environment. They have been a cause for concern amongst researchers as these effects appear to be harmful to most aspects of life. Ways to reverse these phenomena and prevent their further development are being actively researched.
The ozonosphere or as we know it, the ozone layer, is the region of the Earth’s upper atmosphere. It contains a high concentration of ozone molecules. The ozone molecules in the ozone layer work to block an estimated 97-99 percentage of solar radiation from reaching the Earth’s surface. If the ozone layer were not present the radiation from the sun would kill most living things and make our planet uninhabitable. The size and thickness of the ozone layer varies by location and the time of year. It is larger towards the poles of the earth and at its thickest during the spring time. The ozone layer was first discovered by Charles Fabry and Henri Buisson in 1913. In 1958 a network of ozone monitoring stations were established and still operate today. It is important to understand and monitor our ozone layer in order to protect ourselves from the sun’s harmful radiation. We will look at the current status of the ozone layer, the main causes of its degradation, and what the future holds for the ozone layer if we don’t change the way we live.
Climate change is evidenced through shifts in the weather patterns such as winds, humidity and temperatures over certain durations. Natural climate changes occur less frequently and they are triggered by factors related to geographical aspects as well as solar radiation. The earth’s movement on the orbit triggers changes in climate, causing some areas to have higher temperatures than usual, while others are significantly cold depending on the position of the earth on the orbit. The heat from the sun causes changes in the stratospheric ozone and it increases the amount of greenhouse gases. Heat from the oceanic crust also contributes to warming as a result of episodic hydrothermal venting (Liao & Sandeberg, 2012).
Chlorofluorocarbons [CFCs], commonly known as Freon, are a type of organic compounds that are made up of carbon, chlorine, and fluorine atoms. Their significant properties include low volatility of approximately 0℃, together with being tasteless, odourless, non-flammable, nontoxic, and chemically stable. They have supported the society for years through the form of a refrigerant, a solvent and a propellant. Moreover, they have contributed to the industrialization of nations, especially during the 1950s, as a material to manufacture aerosol sprays, and as a blowing agent for foam and packing materials. Ironically, in addition to being a useful compound in many instances, it was found that CFCs have been a leading cause of global warming and the annihilation of species. In 1985, Joe Farman and colleagues discovered and named the destruction of the ozone layer as “the Antarctic ozone hole”. The ozone layer is part of the ozone rich stratosphere – a layer of the earth’s atmosphere that sits approximately 20m above the earth. The main function is to protect the earth from harmful ultraviolet rays [UV rays] emitted from the sun. Thus, the discovery of a hole in the ozone layer was a serious environmental issue. Through investigation, it was found that one of the major factors of the ozone layer deterioration was the production of CFCs. When CFCs reach the atmosphere, they react with UV rays, and turns into substance including chlorine. The chlorine takes place a chemical reaction with the oxygen in ozone, destroying the ozone molecules (See figure 1). According to the US Environmental Protection Agency, a single chlorine atom in the ozone layer can abolish 1,000 zone molecules. In the following essay, the effect of the CFCs on the ozone...